321040223403400 has 96 divisors (see below), whose sum is σ = 747458800512480. Its totient is φ = 128237143232000.

The previous prime is 321040223403397. The next prime is 321040223403421. The reversal of 321040223403400 is 4304322040123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2083693167 + ... + 2083847233.

It is an arithmetic number, because the mean of its divisors is an integer number (7786029172005).

Almost surely, 2^{321040223403400} is an apocalyptic number.

It is an amenable number.

321040223403400 is an abundant number, since it is smaller than the sum of its proper divisors (426418577109080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321040223403400 is a wasteful number, since it uses less digits than its factorization.

321040223403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168535 (or 168526 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 321040223403400 its reverse (4304322040123), we get a palindrome (325344545443523).

The spelling of 321040223403400 in words is "three hundred twenty-one trillion, forty billion, two hundred twenty-three million, four hundred three thousand, four hundred".